how to omit some files from form authentication

<location path="Default.aspx">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>

If u want to omit more than one files from form authentication then put all the file within on
common folder and replace the <location path="Default.aspx">

<location path="public/">, here public is the name of the folder

<location path="public/">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>